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Genetic Assessment of Fertile F1 Hybrids between Two Hercules Beetles, Hardy and Horn (Scarabaeidae). | LitMetric

Genetic Assessment of Fertile F1 Hybrids between Two Hercules Beetles, Hardy and Horn (Scarabaeidae).

Zool Stud

DBiodiversity Research Center, Academia Sinica, Nangang 11529, Taipei, Taiwan. E-mail: (Huang); (Chen); (Le).

Published: April 2023

AI Article Synopsis

  • Hybridization can complicate taxonomic classification but is common among animal species and can enhance phenotypic diversity and genetic understanding.
  • The study focused on F1 hybrids of two Hercules beetle species and used genetic analysis methods to find that these hybrids were more closely related to the maternal species based on mitochondrial data, while nuclear data indicated they were genetically intermediate between the two parental species.
  • Findings highlight that the design of the sampling can significantly influence the genetic structure observed and emphasize the importance of genomic studies in exploring how hybridization contributes to phenotypic variation within and between species.

Article Abstract

Although hybridization may complicate taxonomic practices, it can be common between animal species. Animal hybridization not only can help with generating phenotypic and species diversity in nature, but also with understanding the genetic and genomic basis of phenotypic evolution in the laboratory. We assessed the genetic composition of captive bred F1 hybrids between two Hercules beetle species using mitochondrial and nuclear loci from a double-digest restriction-site associated DNA sequencing (ddRADseq) library. We showed that the F1 hybrids were genetically clustered with samples from the maternal species, , based on data. Nuclear genome data, on the other hand, clearly showed that the F1 individuals were genetically intermediate between , the paternal species, and , based on a principal component analysis. Our results also revealed that sampling design may have a major impact on the inferred genetic structure and hybrid individuals using ddRADseq data sets. We discuss the importance and potential from studying the genomics of this hybrid progeny in terms of understanding the origin and maintenance of both intraspecific and interspecific phenotypic divergence and convergence.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10201344PMC
http://dx.doi.org/10.6620/ZS.2023.62-13DOI Listing

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